Is it possible to pitch a perfect game and not effect the averages of the opposing team?
if you are talking about a complete game,the only way would be
if it were the second game of the season and they were no hit the
first game.you could pitch 5 perfect innings or so and have a
teammate give up 10 runs the rest of the way,or the team fields 9
players with no at bats Yes. If everyone on the other team has a
.000 batting average then nobodies batting average would change.
The previous answers are correct, but let me discuss a bit of
misinformation I seem to hear a lot. One common answer is that this
happened when Bob Feller pitched a no-hitter on opening day one
year, that everyone had a .000 batting average entering the game,
and after the game, they stayed at .000. This is actually a
fallacy. Since no one had batted yet, prior to the game, their
batting averages were not .000, they were undefined. (Remember,
batting average is hits divided by at-bats. Everyone had zero
at-bats prior to the game, and you can't divide by zero.)